Flue



Feb. i, 1227.

s. A. NANCE FLUE Filed June 19. v192e;

INVENTOR ATTORNEY WITNES Patented Feb. 1, 1927.

UNITED STATES SIDNEY ALLEN NANCE, F CANFIELD, ARKANSAS.

FLUE.

Application led June 19,

This invention relates to ues or smoke stacks, and contemplates a tire-proof structure which can be manufactured and sold at a nominal cost, and one which can be readily cleaned from time to time as the occasion may require.

The nature and advantages of the inven tion will be better understood when the following detail description is l0 tion with the accompanying drawings, the

invention residing in the construction, combination and arrangement of parts as claimed.

In the drawing forming part of. this application like numerals of reference indicate similar parts in the several views and wherein:

Figure 1 is a view in elevation.

Figure 2 is a sectional view on line 2-2 of Figure 1.

The flue forming the subject matter of the present invention comprises spaced inner and outer casings 10 and 11 respectively, the former projecting an appreciable dis tance above the upper edge of the casing 11 as clearly illustrated. Arranged within the upper end of the casing 10 is a spark arrester 12 which may be constructed from any suitable material, and var in design without departing from the spirit ot the in vention. Supported by the inner casing 1() above the upper end thereof is the usual cap 13 designed to prevent rain water or the like from entering the flue. Also carried by thecasing 10 at an appropriate point in its length. but arranged immediatelyT above andin spaced relation to the adjacent end ot' the casing 11 is a hood 14', to prevent rain water or the like from entering the space between the respective sections. This space defines an air passage, the air entering the lower end of the section 11 vand passing from the upper end thereof directly beneath the hood 14, and used to prevent the outer section from becoming overheated.

read in connec- 1926. serial No. 117,182.

Surrounding the inner section 10 throughout its entire length is a covering of asbestos or like material 15, which material is held in spaced relation to the outer section 11 by spacing sleeves 16 which surround the bolts 17 employed to connect the respective sections together. These sections are prol vided with aligned openings to receive the inlet pipe 18 through which the smoke and the like is conveyed to the flue, and which pipe is also covered by the asbestos material or the like 15. The flue in its entirety is preterably constructed from metal which is light in weight, and cheap to manufacture. and can be quickly' and conveniently installed in any place for use. The lower end ot' the inner section 1() is normally closed by a hinged door 1.9, with which a suitable latch element 20 is employed, but this door can be readily opened to permit access to the interior of the flue when it is desired to' clean the same.

lVhile it is believed that from the foregoing description', the nature and advantages ofthe invention willbe readily apparent,V I desire to .have it understood, that I do not limit myself to what is herein shown and described and that such changes may be resorted to when desired as fall within-the scope ot what is claimed.

What is claimed is:

A flue comprising spaced inner and outer sections of relatively ditlerent lengths, a hood supported by the inner section and overlying the upper end of the outer section, said sections having aligned openings, a pipe arranged in said openings and communicating with the inner section, the lower ends of said sections lying inthe same horizontal plane` a pivoted door normally closing the lower end oi the inner section, and a latch element carried by said .section for engaging said door in its closed position.

In testimony whereof I aiiix my signature SIDNEY ALLEN NANCE. 

